Sheriff's can't arrest Obama. The Senate Sergeant at Arms has the power to arrest anyone that violates Senate rules. The proof is in the following government website where it states: “The Sergeant at Arms is authorized to arrest and detain any person violating Senate rules, including the President of the United States."http://www.senate.gov/reference/office/sergeant_at_arms.htm http://conservativepapers.com/.../can-a-sitting.../...